gstreamer/gst-libs/gst/gl/gstglwindow_x11ES2.c
2014-03-15 18:36:47 +01:00

1012 lines
27 KiB
C

/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstglwindow.h"
#include <locale.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#define GST_GL_WINDOW_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_GL_TYPE_WINDOW, GstGLWindowPrivate))
/* A gl window is created and deleted in a thread dedicated to opengl calls
The name contains "window" because an opengl context is used in cooperation
with a window */
const gchar *EGLErrorString ();
enum
{
ARG_0,
ARG_DISPLAY
};
struct _GstGLWindowPrivate
{
/* X is not thread safe */
GMutex *x_lock;
GCond *cond_send_message;
gboolean running;
gboolean visible;
gboolean allow_extra_expose_events;
/* X context */
gchar *display_name;
Display *device;
gint screen_num;
Window root;
gint depth;
gint device_width;
gint device_height;
gint connection;
XVisualInfo *visual_info;
Window parent;
Window internal_win_id;
/* We use a specific connection to send events */
Display *disp_send;
/* EGL */
EGLContext gl_context;
EGLDisplay gl_display;
EGLSurface gl_surface;
/* frozen callbacks */
GstGLWindowCB draw_cb;
gpointer draw_data;
GstGLWindowCB2 resize_cb;
gpointer resize_data;
GstGLWindowCB close_cb;
gpointer close_data;
};
G_DEFINE_TYPE (GstGLWindow, gst_gl_window, G_TYPE_OBJECT);
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "GstGLWindow"
gboolean _gst_gl_window_debug = FALSE;
void
gst_gl_window_init_platform ()
{
}
/* Must be called in the gl thread */
static void
gst_gl_window_finalize (GObject * object)
{
GstGLWindow *window = GST_GL_WINDOW (object);
GstGLWindowPrivate *priv = window->priv;
XEvent event;
Bool ret = TRUE;
g_mutex_lock (priv->x_lock);
g_debug ("about to finalize gl window\n");
priv->parent = 0;
if (priv->device)
XUnmapWindow (priv->device, priv->internal_win_id);
if (priv->gl_context) {
ret =
eglMakeCurrent (priv->device, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
if (!ret)
g_debug ("failed to release opengl context\n");
eglDestroyContext (priv->device, priv->gl_context);
}
if (priv->device)
eglTerminate (priv->device);
XFree (priv->visual_info);
XReparentWindow (priv->device, priv->internal_win_id, priv->root, 0, 0);
XDestroyWindow (priv->device, priv->internal_win_id);
XSync (priv->device, FALSE);
while (XPending (priv->device))
XNextEvent (priv->device, &event);
XSetCloseDownMode (priv->device, DestroyAll);
/*XAddToSaveSet (display, w)
Display *display;
Window w; */
//FIXME: it seems it causes destroy all created windows, even by other display connection:
//This is case in: gst-launch-0.10 videotestsrc ! tee name=t t. ! queue ! glimagesink t. ! queue ! glimagesink
//When the first window is closed and so its display is closed by the following line, then the other Window managed by the
//other glimagesink, is not useable and so each opengl call causes a segmentation fault.
//Maybe the solution is to use: XAddToSaveSet
//The following line is commented to avoid the disagreement explained before.
//XCloseDisplay (priv->device);
g_debug ("display receiver closed\n");
XCloseDisplay (priv->disp_send);
g_debug ("display sender closed\n");
if (priv->cond_send_message) {
g_cond_free (priv->cond_send_message);
priv->cond_send_message = NULL;
}
g_mutex_unlock (priv->x_lock);
if (priv->x_lock) {
g_mutex_free (priv->x_lock);
priv->x_lock = NULL;
}
G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
}
static void
gst_gl_window_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGLWindow *window;
GstGLWindowPrivate *priv;
g_return_if_fail (GST_GL_IS_WINDOW (object));
window = GST_GL_WINDOW (object);
priv = window->priv;
switch (prop_id) {
case ARG_DISPLAY:
priv->display_name = g_strdup (g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_window_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGLWindow *window;
GstGLWindowPrivate *priv;
g_return_if_fail (GST_GL_IS_WINDOW (object));
window = GST_GL_WINDOW (object);
priv = window->priv;
switch (prop_id) {
case ARG_DISPLAY:
g_value_set_string (value, priv->display_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_window_log_handler (const gchar * domain, GLogLevelFlags flags,
const gchar * message, gpointer user_data)
{
if (_gst_gl_window_debug) {
g_log_default_handler (domain, flags, message, user_data);
}
}
static void
gst_gl_window_class_init (GstGLWindowClass * klass)
{
GObjectClass *obj_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GstGLWindowPrivate));
obj_class->finalize = gst_gl_window_finalize;
obj_class->set_property = gst_gl_window_set_property;
obj_class->get_property = gst_gl_window_get_property;
g_object_class_install_property (obj_class, ARG_DISPLAY,
g_param_spec_string ("display", "Display", "X Display name", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_gl_window_init (GstGLWindow * window)
{
GstGLWindowPrivate *priv = NULL;
window->priv = GST_GL_WINDOW_GET_PRIVATE (window);
priv = window->priv;
if (g_getenv ("GST_GL_WINDOW_DEBUG") != NULL)
_gst_gl_window_debug = TRUE;
g_log_set_handler ("GstGLWindow", G_LOG_LEVEL_DEBUG,
gst_gl_window_log_handler, NULL);
priv->x_lock = NULL;
priv->cond_send_message = NULL;
priv->running = FALSE;
priv->visible = FALSE;
priv->allow_extra_expose_events = FALSE;
/* X context */
priv->display_name = NULL;
priv->device = NULL;
priv->screen_num = 0;
priv->root = 0;
priv->depth = 0;
priv->device_width = 0;
priv->device_height = 0;
priv->connection = 0;
priv->visual_info = NULL;
priv->parent = 0;
priv->internal_win_id = 0;
/* We use a specific connection to send events */
priv->disp_send = NULL;
/* EGL */
priv->gl_context = EGL_NO_CONTEXT;
priv->gl_display = 0;
priv->gl_surface = EGL_NO_SURFACE;
/* frozen callbacks */
priv->draw_cb = NULL;
priv->draw_data = NULL;
priv->resize_cb = NULL;
priv->resize_data = NULL;
priv->close_cb = NULL;
priv->close_data = NULL;
}
/* Must be called in the gl thread */
GstGLWindow *
gst_gl_window_new (guintptr external_gl_context)
{
GstGLWindow *window = g_object_new (GST_GL_TYPE_WINDOW, NULL);
GstGLWindowPrivate *priv = window->priv;
EGLint config_attrib[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_DEPTH_SIZE, 16,
EGL_NONE
};
EGLint context_attrib[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
EGLint majorVersion;
EGLint minorVersion;
EGLint numConfigs;
EGLConfig config;
XSetWindowAttributes win_attr;
XTextProperty text_property;
XWMHints wm_hints;
unsigned long mask;
const gchar *title = "OpenGL renderer";
Atom wm_atoms[3];
static gint x = 0;
static gint y = 0;
setlocale (LC_NUMERIC, "C");
priv->x_lock = g_mutex_new ();
priv->cond_send_message = g_cond_new ();
priv->running = TRUE;
priv->visible = FALSE;
priv->parent = 0;
priv->allow_extra_expose_events = TRUE;
g_mutex_lock (priv->x_lock);
priv->device = XOpenDisplay (priv->display_name);
XSynchronize (priv->device, FALSE);
g_debug ("gl device id: %ld\n", (gulong) priv->device);
priv->disp_send = XOpenDisplay (priv->display_name);
XSynchronize (priv->disp_send, FALSE);
g_debug ("gl display sender: %ld\n", (gulong) priv->disp_send);
priv->screen_num = DefaultScreen (priv->device);
priv->root = RootWindow (priv->device, priv->screen_num);
priv->depth = DefaultDepth (priv->device, priv->screen_num);
g_debug ("gl root id: %lud\n", (gulong) priv->root);
priv->device_width = DisplayWidth (priv->device, priv->screen_num);
priv->device_height = DisplayHeight (priv->device, priv->screen_num);
priv->visual_info = g_new0 (XVisualInfo, 1);
XMatchVisualInfo (priv->device, priv->screen_num, priv->depth, TrueColor,
priv->visual_info);
win_attr.event_mask =
StructureNotifyMask | ExposureMask | VisibilityChangeMask;
win_attr.do_not_propagate_mask = NoEventMask;
win_attr.background_pixmap = None;
win_attr.background_pixel = 0;
win_attr.border_pixel = 0;
win_attr.colormap =
XCreateColormap (priv->device, priv->root, priv->visual_info->visual,
AllocNone);
mask = CWBackPixmap | CWBorderPixel | CWColormap | CWEventMask;
x += 20;
y += 20;
priv->internal_win_id = XCreateWindow (priv->device, priv->root, x, y,
1, 1, 0, priv->visual_info->depth, InputOutput,
priv->visual_info->visual, mask, &win_attr);
if (!priv->internal_win_id) {
g_debug ("XCreateWindow failed\n");
goto failure;
}
XSync (priv->device, FALSE);
XSetWindowBackgroundPixmap (priv->device, priv->internal_win_id, None);
g_debug ("gl window id: %lud\n", (gulong) priv->internal_win_id);
g_debug ("gl window props: x:%d y:%d\n", x, y);
wm_atoms[0] = XInternAtom (priv->device, "WM_DELETE_WINDOW", True);
if (wm_atoms[0] == None)
g_debug ("Cannot create WM_DELETE_WINDOW\n");
wm_atoms[1] = XInternAtom (priv->device, "WM_GL_WINDOW", False);
if (wm_atoms[1] == None)
g_debug ("Cannot create WM_GL_WINDOW\n");
wm_atoms[2] = XInternAtom (priv->device, "WM_QUIT_LOOP", False);
if (wm_atoms[2] == None)
g_debug ("Cannot create WM_QUIT_LOOP\n");
XSetWMProtocols (priv->device, priv->internal_win_id, wm_atoms, 2);
wm_hints.flags = StateHint;
wm_hints.initial_state = NormalState;
wm_hints.input = False;
XStringListToTextProperty ((char **) &title, 1, &text_property);
XSetWMProperties (priv->device, priv->internal_win_id, &text_property,
&text_property, 0, 0, NULL, &wm_hints, NULL);
XFree (text_property.value);
priv->gl_display = eglGetDisplay ((EGLNativeDisplayType) priv->device);
if (eglInitialize (priv->gl_display, &majorVersion, &minorVersion))
g_debug ("egl initialized: %d.%d\n", majorVersion, minorVersion);
else {
g_debug ("failed to initialize egl %ld, %s\n", (gulong) priv->gl_display,
EGLErrorString ());
goto failure;
}
if (eglChooseConfig (priv->gl_display, config_attrib, &config, 1,
&numConfigs))
g_debug ("config set: %ld, %ld\n", (gulong) config, (gulong) numConfigs);
else {
g_debug ("failed to set config %ld, %s\n", (gulong) priv->gl_display,
EGLErrorString ());
goto failure;
}
priv->gl_surface =
eglCreateWindowSurface (priv->gl_display, config,
(EGLNativeWindowType) priv->internal_win_id, NULL);
if (priv->gl_surface != EGL_NO_SURFACE)
g_debug ("surface created: %ld\n", (gulong) priv->gl_surface);
else {
g_debug ("failed to create surface %ld, %ld, %ld, %s\n",
(gulong) priv->gl_display, (gulong) priv->gl_surface,
(gulong) priv->gl_display, EGLErrorString ());
goto failure;
}
g_debug ("about to create gl context\n");
priv->gl_context =
eglCreateContext (priv->gl_display, config,
(EGLContext) (guint) external_gl_context, context_attrib);
if (priv->gl_context != EGL_NO_CONTEXT)
g_debug ("gl context created: %ld\n", (gulong) priv->gl_context);
else {
g_debug ("failed to create glcontext %ld, %ld, %s\n",
(gulong) priv->gl_context, (gulong) priv->gl_display,
EGLErrorString ());
goto failure;
}
if (!eglMakeCurrent (priv->gl_display, priv->gl_surface, priv->gl_surface,
priv->gl_context)) {
g_debug ("failed to make opengl context current %ld, %s\n",
(gulong) priv->gl_display, EGLErrorString ());
goto failure;
}
g_mutex_unlock (priv->x_lock);
return window;
failure:
g_mutex_unlock (priv->x_lock);
g_object_unref (G_OBJECT (window));
return NULL;
}
GQuark
gst_gl_window_error_quark (void)
{
return g_quark_from_static_string ("gst-gl-window-error");
}
guintptr
gst_gl_window_get_internal_gl_context (GstGLWindow * window)
{
GstGLWindowPrivate *priv = window->priv;
return (guintptr) priv->gl_context;
}
void
callback_activate_gl_context (GstGLWindowPrivate * priv)
{
if (!eglMakeCurrent (priv->gl_display, priv->gl_surface, priv->gl_surface,
priv->gl_context))
g_debug ("failed to activate opengl context %lud\n",
(gulong) priv->gl_context);
}
void
callback_inactivate_gl_context (GstGLWindowPrivate * priv)
{
if (!eglMakeCurrent (priv->device, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT))
g_debug ("failed to inactivate opengl context %lud\n",
(gulong) priv->gl_context);
}
void
gst_gl_window_activate_gl_context (GstGLWindow * window, gboolean activate)
{
GstGLWindowPrivate *priv = window->priv;
if (activate)
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (callback_activate_gl_context), priv);
else
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (callback_inactivate_gl_context), priv);
}
/* Not called by the gl thread */
void
gst_gl_window_set_external_window_id (GstGLWindow * window, guintptr id)
{
if (window) {
GstGLWindowPrivate *priv = window->priv;
XWindowAttributes attr;
g_mutex_lock (priv->x_lock);
priv->parent = (Window) id;
g_debug ("set parent window id: %lud\n", (gulong) id);
XGetWindowAttributes (priv->disp_send, priv->parent, &attr);
XResizeWindow (priv->disp_send, priv->internal_win_id, attr.width,
attr.height);
XReparentWindow (priv->disp_send, priv->internal_win_id, priv->parent,
0, 0);
XSync (priv->disp_send, FALSE);
g_mutex_unlock (priv->x_lock);
}
}
void
gst_gl_window_set_draw_callback (GstGLWindow * window, GstGLWindowCB callback,
gpointer data)
{
GstGLWindowPrivate *priv = window->priv;
g_mutex_lock (priv->x_lock);
priv->draw_cb = callback;
priv->draw_data = data;
g_mutex_unlock (priv->x_lock);
}
void
gst_gl_window_set_resize_callback (GstGLWindow * window,
GstGLWindowCB2 callback, gpointer data)
{
GstGLWindowPrivate *priv = window->priv;
g_mutex_lock (priv->x_lock);
priv->resize_cb = callback;
priv->resize_data = data;
g_mutex_unlock (priv->x_lock);
}
void
gst_gl_window_set_close_callback (GstGLWindow * window, GstGLWindowCB callback,
gpointer data)
{
GstGLWindowPrivate *priv = window->priv;
g_mutex_lock (priv->x_lock);
priv->close_cb = callback;
priv->close_data = data;
g_mutex_unlock (priv->x_lock);
}
/* Called in the gl thread */
void
gst_gl_window_draw_unlocked (GstGLWindow * window, gint width, gint height)
{
GstGLWindowPrivate *priv = window->priv;
if (priv->running && priv->allow_extra_expose_events) {
XEvent event;
XWindowAttributes attr;
XGetWindowAttributes (priv->device, priv->internal_win_id, &attr);
event.xexpose.type = Expose;
event.xexpose.send_event = TRUE;
event.xexpose.display = priv->device;
event.xexpose.window = priv->internal_win_id;
event.xexpose.x = attr.x;
event.xexpose.y = attr.y;
event.xexpose.width = attr.width;
event.xexpose.height = attr.height;
event.xexpose.count = 0;
XSendEvent (priv->device, priv->internal_win_id, FALSE, ExposureMask,
&event);
XSync (priv->disp_send, FALSE);
}
}
/* Not called by the gl thread */
void
gst_gl_window_draw (GstGLWindow * window, gint width, gint height)
{
if (window) {
GstGLWindowPrivate *priv = window->priv;
g_mutex_lock (priv->x_lock);
if (priv->running) {
XEvent event;
XWindowAttributes attr;
XGetWindowAttributes (priv->disp_send, priv->internal_win_id, &attr);
if (!priv->visible) {
if (!priv->parent) {
attr.width = width;
attr.height = height;
XResizeWindow (priv->disp_send, priv->internal_win_id,
attr.width, attr.height);
XSync (priv->disp_send, FALSE);
}
XMapWindow (priv->disp_send, priv->internal_win_id);
priv->visible = TRUE;
}
if (priv->parent) {
XWindowAttributes attr_parent;
XGetWindowAttributes (priv->disp_send, priv->parent, &attr_parent);
if (attr.width != attr_parent.width ||
attr.height != attr_parent.height) {
XMoveResizeWindow (priv->disp_send, priv->internal_win_id,
0, 0, attr_parent.width, attr_parent.height);
XSync (priv->disp_send, FALSE);
attr.width = attr_parent.width;
attr.height = attr_parent.height;
g_debug ("parent resize: %d, %d\n",
attr_parent.width, attr_parent.height);
}
}
event.xexpose.type = Expose;
event.xexpose.send_event = TRUE;
event.xexpose.display = priv->disp_send;
event.xexpose.window = priv->internal_win_id;
event.xexpose.x = attr.x;
event.xexpose.y = attr.y;
event.xexpose.width = attr.width;
event.xexpose.height = attr.height;
event.xexpose.count = 0;
XSendEvent (priv->disp_send, priv->internal_win_id, FALSE, ExposureMask,
&event);
XSync (priv->disp_send, FALSE);
}
g_mutex_unlock (priv->x_lock);
}
}
/* Called in the gl thread */
void
gst_gl_window_run_loop (GstGLWindow * window)
{
GstGLWindowPrivate *priv = window->priv;
g_debug ("begin loop\n");
g_mutex_lock (priv->x_lock);
while (priv->running) {
XEvent event;
XEvent pending_event;
g_mutex_unlock (priv->x_lock);
/* XSendEvent (which are called in other threads) are done from another display structure */
XNextEvent (priv->device, &event);
g_mutex_lock (priv->x_lock);
// use in generic/cube and other related uses
priv->allow_extra_expose_events = XPending (priv->device) <= 2;
switch (event.type) {
case ClientMessage:
{
Atom wm_delete = XInternAtom (priv->device, "WM_DELETE_WINDOW", True);
Atom wm_gl = XInternAtom (priv->device, "WM_GL_WINDOW", True);
Atom wm_quit_loop = XInternAtom (priv->device, "WM_QUIT_LOOP", True);
if (wm_delete == None)
g_debug ("Cannot create WM_DELETE_WINDOW\n");
if (wm_gl == None)
g_debug ("Cannot create WM_GL_WINDOW\n");
if (wm_quit_loop == None)
g_debug ("Cannot create WM_QUIT_LOOP\n");
/* Message sent with gst_gl_window_send_message */
if (wm_gl != None && event.xclient.message_type == wm_gl) {
if (priv->running) {
#if SIZEOF_VOID_P == 8
GstGLWindowCB custom_cb =
(GstGLWindowCB) (((event.xclient.data.
l[0] & 0xffffffff) << 32) | (event.xclient.data.
l[1] & 0xffffffff));
gpointer custom_data =
(gpointer) (((event.xclient.data.
l[2] & 0xffffffff) << 32) | (event.xclient.data.
l[3] & 0xffffffff));
#else
GstGLWindowCB custom_cb = (GstGLWindowCB) event.xclient.data.l[0];
gpointer custom_data = (gpointer) event.xclient.data.l[1];
#endif
if (!custom_cb || !custom_data)
g_debug ("custom cb not initialized\n");
custom_cb (custom_data);
}
g_cond_signal (priv->cond_send_message);
}
/* User clicked on the cross */
else if (wm_delete != None
&& (Atom) event.xclient.data.l[0] == wm_delete) {
g_debug ("Close %lud\n", (gulong) priv->internal_win_id);
if (priv->close_cb)
priv->close_cb (priv->close_data);
priv->draw_cb = NULL;
priv->draw_data = NULL;
priv->resize_cb = NULL;
priv->resize_data = NULL;
priv->close_cb = NULL;
priv->close_data = NULL;
}
/* message sent with gst_gl_window_quit_loop */
else if (wm_quit_loop != None
&& event.xclient.message_type == wm_quit_loop) {
#if SIZEOF_VOID_P == 8
GstGLWindowCB destroy_cb =
(GstGLWindowCB) (((event.xclient.data.
l[0] & 0xffffffff) << 32) | (event.xclient.data.
l[1] & 0xffffffff));
gpointer destroy_data =
(gpointer) (((event.xclient.data.
l[2] & 0xffffffff) << 32) | (event.xclient.data.
l[3] & 0xffffffff));
#else
GstGLWindowCB destroy_cb = (GstGLWindowCB) event.xclient.data.l[0];
gpointer destroy_data = (gpointer) event.xclient.data.l[1];
#endif
g_debug ("Quit loop message %lud\n", (gulong) priv->internal_win_id);
/* exit loop */
priv->running = FALSE;
/* make sure last pendings send message calls are executed */
XFlush (priv->device);
while (XCheckTypedEvent (priv->device, ClientMessage, &pending_event)) {
#if SIZEOF_VOID_P == 8
GstGLWindowCB custom_cb =
(GstGLWindowCB) (((event.xclient.data.
l[0] & 0xffffffff) << 32) | (event.xclient.data.
l[1] & 0xffffffff));
gpointer custom_data =
(gpointer) (((event.xclient.data.
l[2] & 0xffffffff) << 32) | (event.xclient.data.
l[3] & 0xffffffff));
#else
GstGLWindowCB custom_cb = (GstGLWindowCB) event.xclient.data.l[0];
gpointer custom_data = (gpointer) event.xclient.data.l[1];
#endif
g_debug ("execute last pending custom x events\n");
if (!custom_cb || !custom_data)
g_debug ("custom cb not initialized\n");
custom_cb (custom_data);
g_cond_signal (priv->cond_send_message);
}
/* Finally we can destroy opengl ressources (texture/shaders/fbo) */
if (!destroy_cb || !destroy_data)
g_debug ("destroy cb not correclty set\n");
destroy_cb (destroy_data);
} else
g_debug ("client message not reconized \n");
break;
}
case CreateNotify:
case ConfigureNotify:
{
if (priv->resize_cb)
priv->resize_cb (priv->resize_data, event.xconfigure.width,
event.xconfigure.height);
break;
}
case DestroyNotify:
g_debug ("DestroyNotify\n");
break;
case Expose:
if (priv->draw_cb) {
priv->draw_cb (priv->draw_data);
glFlush ();
eglSwapBuffers (priv->gl_display, priv->gl_surface);
}
break;
case VisibilityNotify:
{
switch (event.xvisibility.state) {
case VisibilityUnobscured:
if (priv->draw_cb)
priv->draw_cb (priv->draw_data);
break;
case VisibilityPartiallyObscured:
if (priv->draw_cb)
priv->draw_cb (priv->draw_data);
break;
case VisibilityFullyObscured:
break;
default:
g_debug ("unknown xvisibility event: %d\n",
event.xvisibility.state);
break;
}
break;
}
default:
g_debug ("unknown XEvent type: %ud\n", event.type);
break;
} // switch
} // while running
g_mutex_unlock (priv->x_lock);
g_debug ("end loop\n");
}
/* Not called by the gl thread */
void
gst_gl_window_quit_loop (GstGLWindow * window, GstGLWindowCB callback,
gpointer data)
{
if (window) {
GstGLWindowPrivate *priv = window->priv;
g_mutex_lock (priv->x_lock);
if (priv->running) {
XEvent event;
event.xclient.type = ClientMessage;
event.xclient.send_event = TRUE;
event.xclient.display = priv->disp_send;
event.xclient.window = priv->internal_win_id;
event.xclient.message_type =
XInternAtom (priv->disp_send, "WM_QUIT_LOOP", True);;
event.xclient.format = 32;
#if SIZEOF_VOID_P == 8
event.xclient.data.l[0] = (((long) callback) >> 32) & 0xffffffff;
event.xclient.data.l[1] = (((long) callback)) & 0xffffffff;
event.xclient.data.l[2] = (((long) data) >> 32) & 0xffffffff;
event.xclient.data.l[3] = (((long) data)) & 0xffffffff;
#else
event.xclient.data.l[0] = (long) callback;
event.xclient.data.l[1] = (long) data;
#endif
XSendEvent (priv->disp_send, priv->internal_win_id, FALSE, NoEventMask,
&event);
XSync (priv->disp_send, FALSE);
}
g_mutex_unlock (priv->x_lock);
}
}
/* Not called by the gl thread */
void
gst_gl_window_send_message (GstGLWindow * window, GstGLWindowCB callback,
gpointer data)
{
if (window) {
GstGLWindowPrivate *priv = window->priv;
g_mutex_lock (priv->x_lock);
if (priv->running) {
XEvent event;
event.xclient.type = ClientMessage;
event.xclient.send_event = TRUE;
event.xclient.display = priv->disp_send;
event.xclient.window = priv->internal_win_id;
event.xclient.message_type =
XInternAtom (priv->disp_send, "WM_GL_WINDOW", True);
event.xclient.format = 32;
#if SIZEOF_VOID_P == 8
event.xclient.data.l[0] = (((long) callback) >> 32) & 0xffffffff;
event.xclient.data.l[1] = (((long) callback)) & 0xffffffff;
event.xclient.data.l[2] = (((long) data) >> 32) & 0xffffffff;
event.xclient.data.l[3] = (((long) data)) & 0xffffffff;
#else
event.xclient.data.l[0] = (long) callback;
event.xclient.data.l[1] = (long) data;
#endif
XSendEvent (priv->disp_send, priv->internal_win_id, FALSE, NoEventMask,
&event);
XSync (priv->disp_send, FALSE);
/* block until opengl calls have been executed in the gl thread */
g_cond_wait (priv->cond_send_message, priv->x_lock);
}
g_mutex_unlock (priv->x_lock);
}
}
const gchar *
EGLErrorString ()
{
EGLint nErr = eglGetError ();
switch (nErr) {
case EGL_SUCCESS:
return "EGL_SUCCESS";
case EGL_BAD_DISPLAY:
return "EGL_BAD_DISPLAY";
case EGL_NOT_INITIALIZED:
return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS:
return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC:
return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE:
return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG:
return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT:
return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE:
return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_MATCH:
return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP:
return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW:
return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER:
return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE:
return "EGL_BAD_SURFACE";
default:
return "unknown";
}
}